This is a little off topic but does relate to the hardware we are discussing.
I've read the manufacturer's specs for the operational temperatures of various hard drives but I'm very curious what the "reality" is in the real world: our own laptops and desktops. High temps will shorten the life of electronics, especially our "spin" drives and mechanical moving parts/bearings. Proper cooling is essential. Temperature monitoring can be very helpful and informative.
I had a tower built for me a few years back and use a little program called HW Monitor which reports on hard drive, GPU, CPU and other temps. My two internal hard drives, a WD 2 TB and 4TB float from 86F - 91F which I believe is reasonably cool. Subsequent to the initial build I've also installed additional fans as a well as a fan control panel. All of this keeps a lot of fresh air moving through the Corsair case which also enjoys some very tidy cable management; cable paths are routed under the motherboard to allow direct flow across drives, cards, CPU, RAM, etc.
Several years ago I'd foolishly barbecued an internal HD at about 150F when I stuffed waaaaaay too much hardware in an old Dell tower. The deceased drive was shoved into a very narrow bay between two other drives, with barely any clearance for air flow. I figured - stupidly - that if there's an available space it means you can use it. Those old Dells had no cable management and were an internal mess for really efficient air flow. I learned my lesson well from that experience and fortunately the squeeling of the soon to be dead drive alerted me before it gave up the ghost. I backed off all the data in the nick of time.
Any of you folks monitor HD drive temps or have good techniques for improved cooling? Thanks.